# 四大数据类型 : 整数, 浮点数, 布尔值, 字符串
a =1
b = 3.14e-2
c = True
d = "hello world"

e =2**4
f = 7//3

print(type(a))
print(type(b))
print(type(c))
print(type(d))
print(type(e))
print(e)
print("f:"+str(f))
print("b2:"+str(b))
